MySQL 使用 2 个外键作为主键创建 table 时出现语法错误

Question

当我运行以下查询时，我一直收到 1064 错误，但我不明白它有什么问题：

CREATE TABLE hashmkb_mangatracker.group_release
(
 group_id int NOT NULL,
 release_id int NOT NULL,
 PRIMARY KEY (group_id, release_id),
 UNIQUE INDEX (release_id, group_id),
 FOREIGN KEY (group_id) REFERENCES group(id),
 FOREIGN KEY (release_id) REFERENCES release(id)
) ENGINE=INNODB;

错误：

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'group(id),
FOREIGN KEY (release_id) REFERENCES release(id)
) ENGINE=INNODB' at line 7

感谢您的帮助。

Answer 1

GROUP 是 MySql 中的保留关键字。 RELEASE 也是如此。您将不得不像这样在周围添加反引号：

CREATE TABLE hashmkb_mangatracker.group_release
(
 group_id int NOT NULL,
 release_id int NOT NULL,
 PRIMARY KEY (group_id, release_id),
 UNIQUE INDEX (release_id, group_id),
 FOREIGN KEY (group_id) REFERENCES `group`(id),
 FOREIGN KEY (release_id) REFERENCES `release`(id)
) ENGINE=INNODB;

这里是所有保留字的列表：http://dev.mysql.com/doc/refman/5.6/en/reserved-words.html

MySQL 使用 2 个外键作为主键创建 table 时出现语法错误

MySQL syntax error when creating a table with 2 foreign keys as primary key

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